public void Navigate(IEvent targetEvent)
{
IList <IEvent> sequence = new List <IEvent>();
while (targetEvent.Parent != null)
{
sequence.Insert(0, targetEvent);
targetEvent = targetEvent.Parent;
}
EventsTreeItem item = FindItem(targetEvent);
if (item == null)
{
System.Diagnostics.Debugger.Break();
return;
}
item.Expand();
for (int i = 0; i < sequence.Count; i++)
{
IEvent coreEvent = sequence[i];
item = item.FindItem(coreEvent);
if (item == null)
{
break;
}
item.Expand();
}
if (item != null && _scrollViewer != null)
{
Point point = item.GetMiddlePosition(_scrollViewer);
_scrollViewer.ScrollToVerticalOffset(point.Y);
}
}
private static void OnIsHoveredPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
EventsTreeItem item = (EventsTreeItem)sender;
bool newValue = (bool)e.NewValue;
bool oldValue = (bool)e.OldValue;
if (newValue == oldValue)
{
return;
}
if (newValue)
{
item._treeView.HoveredEvent = item.Event;
}
else if (item._treeView.HoveredEvent == item.Event)
{
item._treeView.HoveredEvent = null;
}
}
protected override void InitializeItems()
{
EventsTable.Clear();
if (_itemsControl != null && Source != null)
{
List <EventsTreeItem> items = new List <EventsTreeItem>();
foreach (IEventsTree tree in Source)
{
if (!tree.HasChildren)
{
continue;
}
EventsTreeItem item = new EventsTreeItem(tree, EventFormatter, this);
EventsTable.Add(tree, item);
items.Add(item);
}
_itemsControl.ItemsSource = items;
}
}
public EventsTreeItem Navigate(IEvent targetEvent)
{
Expand();
if (_event == targetEvent)
{
return(this);
}
if (_childrenItemsControl == null)
{
Collapse();
return(null);
}
foreach (EventsTreeItem item in _childrenItemsControl.Items)
{
EventsTreeItem result = item.Navigate(targetEvent);
if (result != null)
{
return(result);
}
}
Collapse();
return(null);
}
private void InitializeChildren()
{
if (_areChildrenInitialized)
{
return;
}
if (_childrenItemsControl != null)
{
if (_event.HasChildren)
{
List <EventsTreeItem> items = new List <EventsTreeItem>();
foreach (IEvent @event in _event.Children)
{
EventsTreeItem item = new EventsTreeItem(@event, _eventFormatter, _treeView);
items.Add(item);
_treeView.EventsTable.Add(@event, item);
}
_childrenItemsControl.ItemsSource = items;
DispatcherExtensions.DoEvents();
}
_areChildrenInitialized = true;
}
}
private static void OnIsSelectedPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
EventsTreeItem item = (EventsTreeItem)sender;
if (!item._notifySelection)
{
return;
}
bool newValue = (bool)e.NewValue;
bool oldValue = (bool)e.OldValue;
if (newValue == oldValue)
{
return;
}
if (newValue)
{
item._treeView.SetSelectedEventInternal(item.Event);
}
else if (item._treeView.SelectedEvent == item.Event)
{
item._treeView.SetSelectedEventInternal(null);
}
}